Isaac

Isaac (Hebrew: יצחק Yitschaq "he will laugh" or "he laughs") was the only son of Abraham (אברם 'Abram / אברהם 'Abraham) and Sarah (שרי Saray / שרה Sarah) and the father of Jacob (יעקב Ya`aqob) and Esau (עשו `Esav) as described in the book of Genesis of the Hebrew Bible. Isaac was the longest-lived of the patriarchs (one hundred and eighty years), and the only biblical patriarch whose name was not changed. Isaac was also the only patriarch who did not leave Canaan, although he once tried to leave and God told him not to do so:

¹ Now there was a famine in the land, besides the former famine that was in the days of Abraham. And Isaac went to Gerar to Abimelech king of the Philistines. ² And the LORD appeared to him and said, "Do not go down to Egypt; dwell in the land of which I shall tell you. ³ Sojourn in this land, and I will be with you and will bless you, for to you and to your offspring I will give all these lands, and I will establish the oath that I swore to Abraham your father. ⁴ I will multiply your offspring as the stars of heaven and will give to your offspring all these lands. And in your offspring all the nations of the earth shall be blessed, ⁵ because Abraham obeyed my voice and kept my charge, my commandments, my statutes, and my laws.

Compared to other patriarchs in the Bible, his story is less colorful, relating few incidents of his life.

Abraham's willingness to follow God's command to sacrifice Isaac has been viewed by early as well as modern Christianity as an example of faith and obedience.

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 Isaac and Abimelech — Genesis 26:1–34

Isaac

Isaac or Yitzchak (Hebrew: יִצְחָק "he will laugh" or "he laughs") was the only son of Abraham and Sarah, and the father of Jacob and Esau as described in the Hebrew Bible. His story is told in the Book of Genesis. Isaac was the longest-lived of the patriarchs, and the only biblical patriarch whose name was not changed. Isaac was the only patriarch who did not leave Canaan, although he once tried to leave and God told him not to do so. Compared to other patriarchs in the Bible, his story is less colorful, relating few incidents of his life.

Abraham's willingness to follow God's command to sacrifice Isaac was viewed by Early Christianity as an example of faith and obedience, and is often cited today:

8 By faith Abraham obeyed when he was called to go out to a place that he was to receive as an inheritance. And he went out, not knowing where he was going. 9 By faith he went to live in the land of promise, as in a foreign land, living in tents with Isaac and Jacob, heirs with him of the same promise. 10 For he was looking forward to the city that has foundations, whose designer and builder is God. 11 By faith Sarah herself received power to conceive, even when she was past the age, since she considered him faithful who had promised. 12 Therefore from one man, and him as good as dead, were born descendants as many as the stars of heaven and as many as the innumerable grains of sand by the seashore. -Heb. 11:8-12

Etymology and meaning
The English name Isaac is a translation of the Hebrew term יִצְחָק, Strong's H3327 - Yitschaq which literally means "he will laugh," or "he laughs." The term conforms to a well-known Northwest Semitic linguist type, but is not known from elsewhere. As mentioned the term literally means "may God smile", and the Ugaritic texts from thirteenth century BCE refer to the benovolent smile of the Canaanite god El. The Bible (i.e. the canonical collections of sacred writings of Judaism), however, ascribes the laugher to be Isaac's mother (Sarah) rather than the Canaanite god El. The reason for Sarah's laughing, according to the Bible, was that, when God gave the news of the birth of Isaac to his parents they were beyond the age of having children, so they privately laughed at the prediction.

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